Improvement in spark arresters and consumers



UNITED STATES' PATENT OFFICE.

THOMAS E. ROBERTS, OF IONIA, MICHIGAN.

IMPROVEMENT IN SPARK ARRESTERS AND CONSUMERS.

Specification forming part of Letters Patent No. 154,909, datedSeptember 8, 1874; application tiled July 11, 1814.

, Michigan, have invented a new and useful Improvement in SparkArresters and Consinners, of which the following is a specification:

Figure 1 is a vertical longitudinal section of the `smoke-boi; andsmoke-stack of a locomotive towhich my improved device has been applied,.taken through the line a: w, Fig. 2. Fig. 2 is a vertical cross-sectionof the same, taken through the line y y, Fig. l. Fig. 3 is across-section of the same, taken through the line z z, Fig. 2. Fig. 4 isa top view of the same.

Similar letters of reference indicate corresponding parts.

The invention will first be fully described, and then pointed out in theclaim.

A represents the flue-sheet; B, the smokeboX; O, the saddle; D, thesmoke-stack, and E the enlarged top ot' the smoke-stack, all of whichparts are constructed in the usual way. F is a jacket'lining the rearpart of the walls of the smoke-box B, extending close up to theHue-sheet A, and placed at such a distance from the wall 4of thesmoke-box as to inolose the outer row of ues. The lower part of thejacket F is made narrow, and its upper part is made wide enough tosurround the lower end of the smoke-stack D. Gr are two plates, whichextend up along the vopposite sides of the smoke-stack D, and which areso formed as to form spouts to conduct the sparks into the space betweenthe jacket F and the walls of the smoke-box B. To the upper ends ot' theplates or spouts G is attached a ring, H, made in about the form of theenlarged top E of the smoke-stack D, but smaller, so as to leave a spacebetween it and the said enlarged top of the smoke-stack, which space isdivided into two parts by two V-shaped partitions, I, which guide thesparks into the spouts G. J

is the deilector, which is made in the form of the upper edge of theenlarged top E of the smokestack D.

By this construction, as the sparks rise through the smoke-stack, theyare divided and 'guided into the space between the ring II and theenlarged top E of the smoke-stack D, are guided by the V-partitions Iinto the spouts G, through which they pass into the space between vthewalls of the smoke-box B and the jacket F, and pass thencethrough theouter row of Aiiues into the fire-box, where they Vare consumed.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination, with the fire-box, outer row oftubes, and smoke-stack, of the jacket F, plates G, ring H, V-shapedpartitions I I, and deflector J, all constructed andv arrangedsubstantially as and for the purpose set forth.

THOS. E. ROBERTS.

Witnesses: v

ALEXANDERVW. DODGE, WM. B. THOMAS.

